Daikin EHBX08DA9W - Consumed Energy; Normal Kwh Rate Power Supply; Preferential Kwh Rate Power Supply

5 Application guidelines
Installer reference guide
19
ERGA04~08DAV3(A) + EHBH/X04+08DA
Daikin Altherma – Low temperature split
4P496758-1 – 2017.12
▪ Setup and configuration: When using electrical power meters, set
the number of pulses/kWh for each power meter via the user
interface.
INFORMATION
When measuring the electrical power consumption, make
sure ALL power input of the system is covered by the
electrical power meters.
5.5.3 Normal kWh rate power supply
General rule
One power meter that covers the entire system is sufficient.
Setup
Connect the power meter to X5M/5 and X5M/6.
Power meter type
In case of… Use a… power meter
▪ Single-phase outdoor unit
▪ Backup heater supplied from a
single-phase grid (i.e. the
backup heater model is *6V
connected to a single-phase
grid)
Single-phase
▪ Three-phase outdoor unit
▪ Backup heater supplied from a
three-phase grid (i.e. the
backup heater model is *9W or
*6V connected to a three-
phase grid)
Three-phase
Example
Single-phase power meter Three-phase power meter
b
5
8
0
1
5
0
0
0
c c
fed
g
A B C
a
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/N)
b Power meter (L
1
/N)
c Fuse (L
1
/N)
d Outdoor unit (L
1
/N)
e Indoor unit (L
1
/N)
f Backup heater (L
1
/N)
g Booster heater (L
1
/N)
b
5
8
0
1
5
0
0
0
gfe
h
A B C
c c d
a

A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/L
2
/L
3
/N)
b Power meter (L
1
/L
2
/L
3
/N)
c Fuse (L
1
/L
2
/L
3
/N)
d Fuse (L
1
/N)
e Outdoor unit (L
1
/L
2
/L
3
/N)
f Indoor unit (L
1
/L
2
/L
3
/N)
g Backup heater (L
1
/L
2
/L
3
/N)
h Booster heater (L
1
/N)
Exception
▪ You can use a second power meter if:
▪ The power range of one meter is insufficient.
▪ The electrical meter cannot easily be installed in the electrical
cabinet.
▪ 230 V and 400 V three-phase grids are combined (very
uncommon), because of technical limitations of power meters.
▪ Connection and setup:
▪ Connect the second power meter to X5M/3 and X5M/4.
▪ In the software the power consumption data of both meters is
added so you do NOT have to set which meter covers which
power consumption. You only need to set the number of pulses
of each power meter.
▪ See "5.5.4 Preferential kWh rate power supply" on page 19 for
an example with two power meters.
5.5.4 Preferential kWh rate power supply
General rule
▪ Power meter1: Measures the outdoor unit.
▪ Power meter2: Measures the rest (i.e. indoor unit, backup heater
and optional booster heater).
Setup
▪ Connect power meter1 to X5M/5 and X5M/6.
▪ Connect power meter2 to X5M/3 and X5M/4.
Power meter types
▪ Power meter 1: Single- or three-phase power meter according to
the power supply of the outdoor unit.
▪ Power meter2:
▪ In case of a single-phase backup heater configuration, use a
single-phase power meter.
▪ In other cases, use a three-phase power meter.
Example
Single-phase outdoor unit with a three-phase backup heater:
e efe
ihg
j
A B C
b
a
d

c
5
8
0
1
5
0
0
0
5
8
0
1
5
0
0
0
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/N): Preferential kWh rate power
supply
b Electrical cabinet (L
1
/L
2
/L
3
/N): Normal kWh rate power
supply
c Power meter (L
1
/N)
d Power meter (L
1
/L
2
/L
3
/N)
e Fuse (L
1
/N)
f Fuse (L
1
/L
2
/L
3
/N)
g Outdoor unit (L
1
/N)
h Indoor unit (L
1
/N)
i Backup heater (L
1
/L
2
/L
3
/N)
j Booster heater (L
1
/N)
Final English - Tanslations in progress